Winding device for yarns



Aug. 26 1924. 1,506,159

x. BRUGGER WINDING DEVICE FOR. YARNS Filed June 22 1923 Patented Aug. 26, 1924.

UNITED STATES XAVER BRtl'GGER, OF HORG-EN, SWITZERLAND.

WINDING DEVICE FOR YARN S.

Application filed June 22, 1923.

To all whom it may concern:

Be it known that I. XAVER Bnfiecnn, a citizen of the Republic of Switzerland, residing at Horgen, Switzerland, have invented certain new and useful Improvements in Winding Devices for Yarns; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and 'to letters or figures of reference marked thereon, which form a part of this specification.

This invention is a device for winding machines, especially hank winding machines, to make the yarn run as evenly as possible from the holder to the bobbin. The invention consists in a special method of constructing the holder, so that it cannot work too fast and that the yarn remains stretched taut on it. In addition to this a yarn brake is arranged in combination with the yarn guide between the holder and the bobbin.

The drawing shows the device as applied in a practical case.

Fig. 1 shows a section of a reel; Fig. 2 is a side view of the reel; Fig. 3 shows a detail; Fig. 4 is a rear View partly in section and Fig. 5 is a side view of the yarn brake; Fig. 6 shows how the yarn brake and yarn guide are arranged between the holder and bobbin.

The nave 1 of the reel is firmly fixed to the square part of the axle 2. The front faces 3 (Fig. 3) of the nave have grooves 4 in which the arms of the reel 5, which may be made of steel wire, for example, rest in such a way that they can be adjusted in the direction of their length. The free ends 6 of the arms of the reel fit into the slots 6 of the discs 7 and the latter form the nave. These discs are fixed on to the axle 2 in such a way that they can turn. By means of the screw-nut 8 the two parts of the nave 1 and 7 can be fixed firmly together. The discs 7 have a circular groove 9 in which in the example illustrated there are three loading balls, placed so that they can revolve freely. These balls are placed in the circular groove so as to prevent the reel from working too fast if the yarn ceases to be wound ofi". If the arms of the reel are to be adjusted, the screw-nut 8 is undone and the parts of the nave 1 and 7 are turned one way or the Serial No. 847,166.

other according to whether the arms are to be pushed further out to take a wider hank or brought closer together to take a norrower hank. When the arms have been adjusted as ,desired, the parts of the nave l and 7 are again fixed firmly together by means of the screw-nut. The arms of the reel are resilient and keep the bank properly taut on the reel without unduly stretching the yarn.

Between the holder 10 and the bobbin 11 (Fig. 6) there is a rod 14 with a head 18 screwed on to the arm 12 of the guide finger of the yarn guide 13. On thisrod is fixed a grooved disc made of two parts 15, 16. Between the adjusting nut 17 and the grooved disc there is a screw spring 25. The tension of the spring with which it presses the grooved disc against the head of the rod 18 can be regulated by the adjusting nut. To the side of the grooved disc and at the top of the arm 12 a two-armed swing lever 19 is fixed by means of a screw 20 in such a way that it can swing quite freely. The upper arm 19' has an eyelet 21 through which the yarn is guided from the holder over the grooved disc to the bobbin. .The other arm 19 of the lever has a cou'nterbalancing weight. The outside of part 15 of the grooved disc has ratchet teeth into which a catch 22 fixed to the swing lever fits. By means of the screw 23 the above-described yarn brake together with the yarn guide can be moved horizontally on the guide rail 13.

When the tension of the yarn is normal the yarn is approximately in the position shown in Figs. 5 and 6. If for any reason the tension increases. the yarn pulls the swing lever in the direction of the arrow (Fig. 5) out of its normal position, so that the friction of the yarn on the grooved disc is reduced. When the abnormal tension on the yarn ceases. the swing lever returns to its normal position. As the tension on the yarn is constantly altering to some extent, the'lever' is always swinging and its pawl therefore continually makes the grooved disc revolve backwards. it is necessary that the disc should revolve in this way, so that the yarn does not always run over it at the same point; otherwise after a certain time it might cut into the disc, which would then cease to act as a brake. If the tension on the yarn becomes too great, e. g. because the thread gets tangled on the reel, the yarn acts on the in 24 of the stopping device and the win ing machine is stopped.

I claim- 1. In a winding device, a supporting arm, a pair of springcompressed tension discs carried thereby, swinging arm pivoted on the supporting arm, a weight for the lower end of said swinging arm, a thread eye at the up r end thereof and a pawl carried by said iirm and cooperating with the edge of one of said discs.

2. In a winding device, a rail, a supporting arm mounted thereon, means to adjust the arm longitudinally of the rail, a pair of adjustably compressed tension discs on said 15 arm, one of which has a toothed rim, a swinging arm supported by the first arm, a thread eye and a pawl on the swingingarm, said pawl cooperatin with said toothed rim to step the disc w en the pivoted arm 20 swings under varying thread tension.

In testimony that I claim the foregoing as my invention, I have signed m name.

X. BR GGER. 

